According to biographer Andrew Morton, Prince Harry 'launched an ineffectual attack on his father' during the couple's split

The biographer wrote: "[Charles and Diana's] parental rivalry continued behind the closed doors of Kensington Palace."

After one heated argument, Morton claims that a "young Harry launched an attack on his father, ineffectually beating him on the legs with his fists."

Prince Harry - who was 11 years old when his parents divorced - yelled: "I hate you, I hate you, you make Mummy cry."

In comparison to Harry's outbursts, the biographer added: "William, sensitive and a little shy, was old enough to absorb the confusing and emotional meaning behind the stony silences and harsh words when his parents were together.